Number bonds to 100

Today in Maths, the children were asked to find the missing number in the number bonds to 100.

For example: 

34 + ___ = 100                          84 + ___ = 100                         ___ + 56 = 100

Some children found this a challenge. 

It would be fantastic if you could practice the method at home with your children. 

Thank you for your on going support